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Dell EMC Networking OS Configuration Guide for the S5048F–ON System 9.14.2.8

Re-Authenticating a Port

You can configure the authenticator for periodic re-authentication.

After the supplicant has been authenticated, and the port has been authorized, you can configure the authenticator to re-authenticate the supplicant periodically. If you enable re-authentication, the supplicant is required to re-authenticate every 3600 seconds by default, and you can configure this interval. You can configure the maximum number of re-authentications as well.

To configure re-authentication time settings, use the following commands:

  • Configure the authenticator to periodically re-authenticate the supplicant.
    INTERFACE mode
    dot1x reauthentication [interval] seconds
    The range is from 1 to 31536000.
    The default is 3600.
  • Configure the maximum number of times the supplicant can be re-authenticated.
    INTERFACE mode
    dot1x reauth-max number
    The range is from 1 to 10.
    The default is 2.

Example of Re-Authenticating a Port and Verifying the Configuration

The bold lines show that re-authentication is enabled and the new maximum and re-authentication time period.

DellEMC(conf-if-tf-1/1)#dot1x reauthentication interval 7200
DellEMC(conf-if-tf-1/1)#dot1x reauth-max 10
DellEMC(conf-if-tf-1/1)#do show dot1x interface twentyFiveGigE 1/1

802.1x information on Tf 1/1:
-----------------------------
Dot1x Status:          Enable
Port Control:          FORCE_AUTHORIZED
Port Auth Status:      UNAUTHORIZED
Re-Authentication:     Enable
Untagged VLAN id:      None
Tx Period:             90 seconds
Quiet Period:          120 seconds
ReAuth Max:            10
Supplicant Timeout:    30 seconds
Server Timeout:        30 seconds
Re-Auth Interval:      7200 seconds
Max-EAP-Req:           10
Auth Type:             SINGLE_HOST
Auth PAE State:        Initialize
Backend State:         Initialize
Auth PAE State:        Initialize
Backend State:         Initialize

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